I'm using the counter on my pci-6052E to count the number of pulses on a line. The count goes up and down since I have a direction signal. Now I need and indication (a pulse) every time the count reaches zero. This is similar to the breakpoint function on motion controllers. Is this possible...."
You can generate a pulse whenever the counter reaches Terminal Count (TC). You could try setting TC to zero, but I do not think it will work. You can always poll the count in software until it reaches zero.